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Now showing items 11-20 of 410
Motions of water, decane, and bis(2-ethylhexyl)sulfosuccinate sodium salt in reverse micelle solutions
(The American Chemical Society: Langmuir, 1999-08-17)
Reverse micellar solutions made from the surfactant bis(2-ethylhexyl)sulfosuccinate sodium salt (AOT), water, and decane have been studied using NMR inversion-recovery and pulsed-field gradient experiments. Spin-lattice ...
A project-oriented biochemistry laboratory course
(American Chemical Society: Journal of Chemical Education, 1999-08)
A project-oriented laboratory course has been designed to introduce students to the study of biochemistry as it is practiced. The course is designed to be a capstone experience for students enrolled in a variety of majors ...
Effect of I– impurity on the efficiency of silver cluster formation on AgBr microcrystal surfaces
(American Institute of Physics, 1999-08-01)
Computer simulation is used to study the effect of iodide impurity on silver cluster formation on AgBr microcrystals. The simulation is based on a nucleation-and-growth model of silver cluster formation in competition with ...
Synchronous Sisyphus effect in diode lasers subject to optical feedback
(American Physical Society, 1999-08)
Diode lasers exposed to moderate optical feedback, when biased near threshold, exhibit low-frequency intensity fluctuations in the RF spectrum that materialize as dropout events in the intensity time series. We recorded ...
Injection-locked semiconductor laser dynamics from large to small detunings
(The International Society for Optical Engineering (SPIE), 1999-08)
The equations for a semiconductor laser subject to injection are examined numerically and analytically
from large negative to moderate negative to positive values of the detuning. We concentrate on the
stability of the ...
Investigation of coupled diode laser dynamics using an electronic analog
(The International Society for Optical Engineering (SPIE), 1999-08)
We study the behavior of coupled semiconductor lasers using a reduced phase model that captures their
essential dynamics yet remains analytically tractable. We design a simple electronic circuit analog, a phaselocked
loop, ...
Differential fiu–lacZ fusion regulation linked to Escherichia coli colony development
(Blackwell: Molecular Microbiology, 1999-07)
Colonies of strains carrying a stable λplacMu15 translational fusion displayed sharply defined intense staining at the centre on Xgal medium. The fusion was in fiu (ferric ion uptake), encoding an iron-regulated outer ...
Dynamic acousto-optic photopolarimeter/ spectrophotopolarimeter
(Society of Photo-Optical Instrumentation Engineers (SPIE) - Optical Engineering, 1999-07)
We propose a novel technique for a new division-of-amplitude
photopolarimeter capable of complete measurement of the state of polarization
of light, as determined by the four Stokes parameters. This
photopolarimeter ...
Quasiperiodic synchronization for two delay-coupled semiconductor lasers
(American Physical Society, 1999-05)
The dynamical behavior of two mutually coupled semiconductor lasers is studied experimentally, numerically, and analytically for weak coupling. The lasers have dissimilar relaxation oscillation frequencies and intensities, ...
Aggregation quenching of luminescence in electroluminescent conjugated polymers
(The American Chemical Society: Macromolecules, 1999-04-08)
We report measurements of photoluminescence from films of a soluble phenylenevinylene polymer that has prospective importance as the emissive material in light-emitting diodes. We show unambiguously that there is long-lived ...